Adam P Jenkins wrote:
I'm not sure what the logic is behind the "get" method, but there it
is.
It's completely logical if you appreciate that Apple event IPC is RPC
+queries. To tell a scriptable application to perform an operation,
you send it a command (Apple event). If the command operates on
application objects, you identify those objects using simple first-
class relational queries ("object specifiers" in Apple event jargon,
or what AppleScripters misleadingly call "references") which you
supply as arguments (parameters) to the command. As a rough analogy,
think of using XPath queries over XML-RPC.
It's a simple, really rather elegant, and surprisingly powerful and
flexible conceptual model, whose simplicity, elegance, power and
flexibility is, in execution, horribly distorted and obscured by
AppleScript's - and, to an even greater extent, Scripting Bridge's -
crazy mad love affair with pseudo-OO syntax and poorly documented
'magic' behaviours, until the number of folks who have a completely
accurate and comprehensive understanding of how this stuff really
works can probably be counted on the fingers of one hand.
There's a brief summary of the basic principles behind Apple event IPC
included in the appscript documentation. For your convenience, the
Ruby version is currently online at:
http://rb-appscript.rubyforge.org/doc/appscript-manual/02_aboutappscripting.html
For a more detailed discussion see the two PDF papers by William Cook
(one of the original AppleScript designers) on the appscript links page:
http://appscript.sourceforge.net/links.html
Matt Neuburg's "AppleScript: The Definitive Guide" (2nd ed.) is also
well worth a read.
HTH
has
--
http://appscript.sourceforge.net
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